Showing the Hamburger-menu on all mobile-pages (replace 'back-button). Possible?

SV7

Question: Is it possible to display the 'hamburger-menu' button for all mobile (@media) pages? (thus, replacing the 'back-button')

Purpose: To give users access to 'search, notifications, and links' from every mobile page (via the hamburger drop-down).

Code: This seems to be the relevant block of flarum's HTML on a 'back-button' page:

<div id="app-navigation" class="App-navigation">
  <div class="Navigation ButtonGroup App-backControl"> **[EV]**
    <a class="Button Navigation-back Button--icon hasIcon" href="/" title="Back to Discussion List" active="false" type="button" aria-label="Back to Discussion List"> **[EV]**
      <i class="icon fas fa-chevron-left Button-icon"></i>
    </a> 
  </div>
</div>

[EV] = This javascript event is called on the two lines marked [EV] above:

function(t) {
  t = t || event, m.redraw.strategy("diff"), m.startComputation();
  try {
    return c.call(l, t)
  } finally {
    ct()
  }
}

After several fruitless attempts...I'm willing to learn.

All ideas or hacks are welcome. Much respect.